Lighting device



FIG. 1 is a top, left, front perspective view of a lighting device embodying our new design;

FIG. 2 is a left side elevational view thereof, the right side elevational view thereof being a mirror image of the left side shown;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken line representations in the figures illustrate environmental features that form no part of the claimed design. 

The ornamental design for a lighting device, as shown and described. 